Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Role of L carnitine in the transport of long chain fatty acids through Download Scientific Diagram Frontiers L carnitine: new perspectives on the management of preterm infants Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to